{"id":"CVE-2026-126893","kind":"vulnerability","aliases":["CVE-2026-126893"],"related":[],"title":"Chrome: V8 out-of-bounds write lets a crafted web page run code","description":"Out of bounds write in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"An out-of-bounds write in the V8 JavaScript engine of Google Chrome lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. Chromium rates the flaw High severity.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","linux","macos","runtime","windows"],"not_affected_if":["chrome-at-or-above-157.0.8103.78"],"how_to_check":"- Open Chrome and check the version under Help > About Google Chrome, or run `chrome://version` in the address bar.\n- Compare the installed version with `157.0.8103.78`; anything older is exposed.","fix":"- Google Chrome: move to `157.0.8103.78` or later.","status":"open","published_at":"2026-11-11T23:17:18+00:00","first_seen_at":"2026-11-11T23:29:39+00:00","triaged_at":"2026-11-11T23:32:01+00:00","updated_at":"2026-11-11T23:32:01+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-11-11T23:32:01Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.78` or later.","reach":"internet","title":"Chrome: V8 out-of-bounds write lets a crafted web page run code","impact":"high","summary":"An out-of-bounds write in the V8 JavaScript engine of Google Chrome lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. Chromium rates the flaw High severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browser","windows","macos","linux"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox via a crafted page","analyst_note":"","how_to_check":"- Open Chrome and check the version under Help > About Google Chrome, or run `chrome://version` in the address bar.\n- Compare the installed version with `157.0.8103.78`; anything older is exposed.","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: Chrome menu > Help > About Google Chrome.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-at-or-above-157.0.8103.78"],"who_is_affected":"Anyone running Google Chrome older than 157.0.8103.78 is exposed, as a victim who opens a malicious page is enough. Servers and developer machines that run Chrome for browsing or testing are also in scope. unknown for other Chromium-based browsers, which may pick up the fix separately.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000748,"input_tokens":4534,"output_tokens":589,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126893':17A,20A '-2026':16A,19A '157.0.8103.78':77C 'allow':78C 'arbitrari':46B,84C 'attack':44B,81C 'bound':6A,31B,68C 'browser':21B,50B 'chrome':1A,22B,40B,74C 'chromium':60B,94C 'code':14A,47B,85C 'craft':10A,57B,91C 'cve':15A,18A 'engin':37B 'execut':83C 'flaw':63B 'googl':39B,73C 'high':64B,97C 'html':58B,92C 'insid':48B,86C 'javascript':36B 'let':8A,41B 'linux':23B 'maco':24B 'open':55B 'out-of-bound':3A,28B 'page':12A,59B,93C 'prior':75C 'rate':61B 'remot':43B,80C 'run':13A,45B 'runtim':25B 'sandbox':51B,88C 'secur':95C 'sever':65B,96C 'v8':2A,35B,71C 'via':89C 'victim':54B 'web':11A 'window':26B 'write':7A,32B,69C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome older than 157.0.8103.78 is exposed, as a victim who opens a malicious page is enough. Servers and developer machines that run Chrome for browsing or testing are also in scope. unknown for other Chromium-based browsers, which may pick up the fix separately.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: Chrome menu > Help > About Google Chrome.","pkeys":[],"ptokens":[],"labels":["browser","chrome","high","linux","macos","runtime","windows"],"campaign_type":null,"search_a":"'-126893':17A,20A '-2026':16A,19A 'bound':6A 'chrome':1A 'code':14A 'craft':10A 'cve':15A,18A 'let':8A 'out-of-bound':3A 'page':12A 'run':13A 'v8':2A 'web':11A 'write':7A","search_b":"'arbitrari':46B 'attack':44B 'bound':31B 'browser':21B,50B 'chrome':22B,40B 'chromium':60B 'code':47B 'craft':57B 'engin':37B 'flaw':63B 'googl':39B 'high':64B 'html':58B 'insid':48B 'javascript':36B 'let':41B 'linux':23B 'maco':24B 'open':55B 'out-of-bound':28B 'page':59B 'rate':61B 'remot':43B 'run':45B 'runtim':25B 'sandbox':51B 'sever':65B 'v8':35B 'victim':54B 'window':26B 'write':32B","search_c":"'157.0.8103.78':77C 'allow':78C 'arbitrari':84C 'attack':81C 'bound':68C 'chrome':74C 'chromium':94C 'code':85C 'craft':91C 'execut':83C 'googl':73C 'high':97C 'html':92C 'insid':86C 'page':93C 'prior':75C 'remot':80C 'sandbox':88C 'secur':95C 'sever':96C 'v8':71C 'via':89C 'write':69C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:18+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126893","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126893","severity":null,"published_at":"2026-11-11T23:17:18+00:00","modified_at":"2026-11-11T23:17:18+00:00","first_seen_at":"2026-11-11T23:29:39+00:00","fetched_at":"2026-11-11T23:29:39+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}